G
Giorgio Vannini
Researcher at University of Ferrara
Publications - 214
Citations - 2940
Giorgio Vannini is an academic researcher from University of Ferrara. The author has contributed to research in topics: High-electron-mobility transistor & Amplifier. The author has an hindex of 27, co-authored 214 publications receiving 2588 citations. Previous affiliations of Giorgio Vannini include University of Bologna & Katholieke Universiteit Leuven.
Papers
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Proceedings ArticleDOI
Accurate Nonlinear Electron Device Modelling for Cold FET Mixer Design
V. Di Giacomo,Alberto Santarelli,Antonio Raffo,Pier Andrea Traverso,Dominique Schreurs,J.A. Lonac,Davide Resca,Giorgio Vannini,Fabio Filicori,M. Pagani +9 more
TL;DR: In this paper, a nonlinear empirical model is adopted to model the cold-FET behavior of a GaAs PHEMT, in the framework of a resistive mixer application, which is suitably identified in the device operative region of interest and validated in large-signal conditions by exploiting a measurements setup based on LS-VNA.
Proceedings ArticleDOI
Thermal characterization of high-power GaN HEMTs up to 65 GHz
Alessandra Petrocchi,Giovanni Crupi,Valeria Vadala,Gustavo Avolio,Antonio Raffo,Dominique Schreurs,Alina Caddemi,Giorgio Vannini +7 more
TL;DR: In this paper, the authors focused on temperature dependent characterization of a 0.25×1500 μm2 GaN HEMT and reported the impact of the ambient temperature on the microwave performance.
Optimum design of a new predistortion scheme for high linearity K-band MMIC power amplifiers
P. Bianco,Simona Donati Guerrieri,Giovanni Ghione,Marco Pirola,Carlo Naldi,Corrado Florian,Giorgio Vannini,Alberto Santarelli,Fabio Filicori,L. Manfredi +9 more
TL;DR: In this article, a novel predistortion approach well suited for MMIC design is discussed, where the active stages of the predistorter are modeled through a nonlinear describing function, which can be experimentally characterized through LS S-parameters measurements.
TX system-level analysis by behavioral modeling of RF building blocks: the IEEE802.11a and IEEE802.15.3a case studies
Alessandro Cidronali,M. Camprini,I. Magrini,Eduard Bertran,N. Athanasopoulos,R. Makri,Rafael Cignani,Giorgio Vannini,Joaquin Portilla,P. Casas,K. Vryssas,A. Samelis,Gianfranco Manes +12 more
TL;DR: The paper highlights some of the newest results achieved in the framework of the transmitter modeling for wideband access transmitters work package within the IST-EU network of excellence TARGET.
Circuit Architectures for Low-Phase-Noise Oscillators
TL;DR: In this paper, a 9db improvement in the phase noise level can be obtained when using a push-push oscillator architecture in comparison with a fundamental-frequency oscillator developed under the same conditions.